Answer:
The embryo gets nutrition from the mothers blood with the help of special tissue called placenta. This is a disc-like tissue which develops between the uterine wall and embryo. It has villi on embryo side of the tissue. On the mothers side are blood spaces which the villi. This gives a large surface area for oxygen and glucose to pass from the mother to the embryo.
You need to login to perform this action.
You will be redirected in
3 sec
